Home / 1,493,316.16-2,239,764.72-428,449.12

Finding the Fourth Proportional to 1,493,316.16, 2,239,764.72 and 428,449.12

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Solution

The fourth proportional to 1,493,316.16, 2,239,764.72 and 428,449.12 is: 642,613.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493,316.16 : 2,239,764.72 = 428,449.12 : x
  2. Step 2: Convert to fraction form
    1,493,316.16/2,239,764.72 = 428,449.12/x
  3. Step 3: Cross multiply
    1,493,316.16x = 2,239,764.72 × 428,449.12
  4. Step 4: Simplify right side
    1,493,316.16x = 959,625,223,291.05
  5. Step 5: Solve for x
    x = 959,625,223,291.05/1,493,316.16
  6. Step 6: Final answer
    x = 642,613.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.